(Renton, WA)  --  Seahawks running back Marshawn Lynch has missed two days of practice this week as the team prepares for Sunday's game against Kansas City.  The Seahawks listed Lynch with a "rib issue" yesterday, but there's no indication yet on how it will affect his participation in the game Sunday.  Lynch rushed for 140 yards and a career-high four touchdowns last Sunday against the New York Giants.